This front lip spoiler air dam is perfect for car enthusiasts who want to upgrade the look of their 1998 - 2005 Lexus GS300, GS400, or GS430. Use it when you're cruising on the highway or showing off your car at car meets. It's made of FRP material which is lightweight yet strong. Although specific size and weight details aren't given, you can expect it to be a great addition that won't add too much bulk to your vehicle. Professional installation is a must to ensure it fits perfectly.